Radiation therapy is a cancer treatment that uses high-energy beams to kill cancer cells. It is often used to treat breast cancer, either after surgery to remove the tumor (adjuvant therapy) or to shrink the tumor before surgery (neoadjuvant therapy). The benefits of radiation therapy for breast cancer patients include: It can help to kill cancer cells that may remain after surgery. It can help to reduce the risk of the cancer coming back (recurrence). It can be used to treat cancer that has spread to other parts of the body (metastatic cancer). The risks of radiation therapy for breast cancer patients include: Skin irritation, redness, and peeling. Fatigue. Dry mouth. Hair loss in the treated area. Lymphedema, a swelling of the arm or hand on the side of the breast that was treated. In very rare cases, radiation therapy can cause cancer in other parts of the body. The decision of whether or not to have radiation therapy for breast canc...
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